Breaking down a Holset Style VGT Turbo for Cummins ISX | HE500VG 

Or at least the music volume much lower than their talking.

The vanes can be distorted from excessive exhaust gas temperature, or any foreign impact. Either of these events will cause the vanes to become lodged in the unison ring. On rare occasions, excessive soot build up can cause the vanes to begin to bind at the unison ring, but VGT functionality can be restored once the soot is cleared (but you still need to correct the source of the soot) In my personal experience the above scenarios are fairly common when we come across a VGT that is "seized"

@@momentumworxthanks for the reply. Agreed on the soot/carbon buildup, but IMHO CTT’s VGT nozzle rings and shroud plates are famous (not infamous) for FOD resistance and thermal resistance. I believe those are a 300 series stainless and are heat treated for those specific forms of resistance. I’ve seen plenty of rip outs during rebuilds and more often than not, those nozzle rings and shroud plates get the carbon dissolved off and scrubbed, then go right back in. I’m more thankful for these than VNTs from those “other guys” lol. Clearing up the cause for whatever causes FOD, etc - couldn’t agree with you more brother! Keep up the great work. Love these videos.

@momentumworx how do you get the plate off with the 3 bolts in it after you remove it

About the EGR system, cause carbon accumulation in exhaust gases?

I would recommend having it balanced.

I see you exercising that 1st amendment my guy. Enjoy!

@@momentumworx Good no BS analysis and comparison of your turbos.